Citrullus lanatus (Watermelon) seed oil

AKA: Watermelon seed oil
Plant-Derived
Emollient
Skin Conditioner
Not Clean
OriginDerived from the seeds of Citrullus lanatus, a cucurbit plant native to Africa and now cultivated globally. Cold-pressed from watermelon seeds to extract the oil without heat or chemical solvents.
citrullus lanatus (watermelon) seed oil is a cosmetic ingredient used as emollient, skin conditioning. Assessed as safe by the CIR.
Family
Cucurbitaceae (gourd family)
Plant Part
Seed
Lifeform
Annual
Climate
Seasonally dry tropical
CAS #
90244-99-8
Form
Oil
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks In Moisture
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
1 study / 1 not irritating (CIR 577)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 577)
Concentration Guide
Leave-on2%
Rinse-offNot reported
0%50%100%
CIR reported use · 2010 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: Kew POWO · CosIng · EWG · CIR